Spanish Prime Minister Pedro Sanchez said Wednesday that American voters had rejected policies promoting "hatred, sexism and climate change denial" in Tuesday's US elections, arguing that the far-right political wave was losing momentum.

In a post through US social media company X, Sanchez said the election results reflected opposition to policies that "impoverish" people and favor privileged elites.

"Yesterday, American society voted against policies that only impoverish. Against hatred. Against sexism. Against climate change denial and against the privileges of the elites," he wrote.

Drawing parallels with political developments in Brazil, Sanchez predicted that a similar shift would take place in Spain.

"It happened in Brazil. It has just happened in the US. And it will happen soon in Spain," he said, referring to the Nov. 29 elections in the country.

Sanchez also mentioned opposition People's Party leader Alberto Nunez Feijoo and far-right Vox leader Santiago Abascal, saying the political wave they were seeking to ride was losing momentum.

"The far-right wave that Feijoo and Abascal are trying to jump on is no longer growing: it is crumbling," Sanchez wrote.

His remarks came a day after Americans voted in the Nov. 3 midterm elections, which included contests for congressional seats and other offices across the country.

Democrats were projected by US media to secure 53 Senate seats, compared with 42 for Republicans, as counting continued in the remaining races.

The party was also poised to win at least 218 seats in the 435-member House of Representatives, the threshold needed for a majority. (AA)